Mobile Radiator & Cooling System Repair in DC, Maryland & Virginia

My Halo Auto provides mobile cooling system and radiator repair across DC, Maryland and Virginia. An ASE-certified technician diagnoses cooling problems and replaces radiators, services water pumps, replaces thermostats and performs coolant flushes at your location.

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5.0 on Google · ASE certified · Mon–Sat 7AM–7PM

Radiator core with a damaged section of cooling fins
Radiator core, damaged section

What Does Mobile Cooling System Repair Include?

Full cooling system diagnosis and repair. From radiator replacement to water pump service.

  • Radiator replacement

    Damaged or leaking radiators replaced.

  • Water pump service

    Leaking or failing water pumps serviced.

  • Thermostat replacement

    Stuck or failing thermostats replaced.

  • Coolant flush & fill

    Old coolant flushed and the system refilled.

Mercedes-Benz with the hood up and the engine bay open
Hood up, engine bay open

Can Cooling System Repair Be Done at My Location?

Yes. Cooling system work is performed on-site at your home, office, lot or job site when there's adequate, safe workspace.

Available across Washington, DC (all four quadrants), Maryland (Silver Spring, Bethesda, Rockville, College Park, Bowie, Laurel and more) and Northern Virginia (Arlington, Alexandria, Fairfax, Reston, Tysons, Manassas and more).

Mobile service requires adequate workspace and a suitable area to work safely, such as a flat driveway, parking lot or garage.*

Common Signs You May Need Cooling System Repair

These are common signs, not a diagnosis. The cause is confirmed with a hands-on diagnosis before any repair is recommended.

  • Temperature gauge reading high or overheating
  • Coolant puddles or a sweet smell
  • Low coolant warning
  • Steam from under the hood
  • Heater blowing cold

Not sure? Describe what you're noticing when you request a quote.

Radiator core with a section of damaged cooling fins

Photos from Our Work

New and old water pump gaskets laid side by side on an engine
Water pump gaskets, old vs new
Damaged radiator core with a crushed, leaking section
Radiator damage diagnosis

Cooling system repair is available for personal vehicles and for company fleets: work vans, pickups, sedans and SUVs, serviced at your lot, yard or job site.

Fleet services

Cooling System Repair FAQ

Still have a question? Call or text (571) 969-4256.

Last updated: October 2026

Yes. Radiator replacement is done on-site at your location in DC, Maryland or Virginia when there's adequate, safe workspace.

Yes. Water pump service and thermostat replacement are part of our cooling system service.

Yes. Coolant flush and fill is part of both our cooling system service and our general maintenance.

Yes, for company and fleet vehicles at your lot, yard or job site, scheduled with your fleet manager.

Engine Repair & Diagnostics

Gaskets & Seals

General Maintenance

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Get a Cooling System Quote

Call or text (571) 969-4256 or use the form. Tell us your vehicle's year, make and model and what's going on.

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Stranded or need urgent repair? Call us now.

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(571) 969-4256

*Mobile Service Disclaimer: Mobile service requires adequate workspace and a suitable area for the technician to safely perform repairs (e.g., a flat driveway, parking lot, or garage). Engine swaps, exhaust work, and other major services cannot be performed as mobile service and require a consultation. We do not offer bodywork, performance upgrades, or coilover installation. Exhaust and custom fabrication services require a prior consultation. My Halo Auto specializes in automotive maintenance and repair, not performance enhancement.

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